▎ 摘　　要

NOVELTY - The heater pipe (1) has a housing (110) formed of metal and a shape of a hollow pipe for accommodating an aerosol-forming article. A first insulating layer (200) is formed on an outer surface of the housing. An exothermic layer is formed by deposition on the first insulating layer, and a second insulating layer (400) is formed on the exothermic layer. The graphene layer (300) is connected to an external power source through a connector portion (410a,410b) formed by removing a portion of the second insulating layer, and exposed to the outside. The insulating layers are polyimide film. An exothermic layer is formed on the electrode layer, and is a thin film formed by applying a paste composition of platinum-based ruthenium, palladium, and silver and then sintering. USE - Heater pipe for aerosol generating device for transferring heat to aerosol-forming article. ADVANTAGE - An insulating layer is formed on a metal pipe and graphene is deposited to form a surface heating layer, thus obtaining thermal and electrical conductivity and a very fast heating rate. The surface heating layer is also present on a lower surface of the heater pipe, so that the inserted aerosol-forming material is heated more evenly, and since the surface heating layer and a connector are integrally formed, manufacturing is facilitated. The heater pipe is equipped with a film-type temperature sensor to facilitate temperature control, while maintaining compactness. The graphene layer is deposited in a pattern shape to cover a significant portion of the first insulating layer, and the required amount of graphene is reduced, while the purpose of surface heating is sufficiently achieved. The boost converter is a converter that boosts a voltage between direct currents, and increases a voltage transferred from the external power source to the graphene layer so that the heater pipe is boosted more quickly. By configuring the laminated heater pipe, while the cross-sectional area of the hollows laminated toward the bottom is reduced, the aerosol-forming article inserted from the upper end of the hollow of the heater pipe is easily inserted from the top and increased adhesion with an inner wall of the heater pipe, so that heat is easily transferred. A heat-up time is shortened, user experience of the aerosol generating device is increased and current consumption is reduced. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a heater pipe. 1Heater pipe 110Housing 200First insulating layer 300Graphene layer 400Second insulating layer 410a,410bConnector portion